Question

Sendo A=( 1 5 -4 1), B=( 2 -2 -3 0) e C=( 1 0 -1 4) determine:
a) A.B
b) A.A
c) A.B + B.C


me ajudem ​

Answer 1

Resposta:

a.(15-41).(2-3-30)

-26.-30= +780

b. (15-41).(15-41)

-26.-26=+676

c.a.b+b.c

c. -26.-30 + -30.-4

+780 + (-120)

+780 -120

+660